[Solved] What will this code print?module M def greet "M says hello" end end class C prepend M def greet "C says hello" end end puts C.new.greet | Ruby

Ruby - Modules and Mixins

What will this code print?

module M
  def greet
    "M says hello"
  end
end

class C
  prepend M
  def greet
    "C says hello"
  end
end

puts C.new.greet

AM says hello

BC says hello

CM says helloC says hello

DError: super not defined

Step-by-Step Solution

Solution:

Step 1: Identify method lookup order
Since M is prepended, its greet method is called before C's.
Step 2: Check method calls
M's greet returns "M says hello" and does not call super, so C's method is not called.
Final Answer:
M says hello -> Option A
Quick Check:
Prepended module method runs first and returns its string [OK]

Quick Trick: Prepended module method runs first, super needed to call class method [OK]

Common Mistakes:

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